Thank you both. Based on that, and some YouTube research, I ll go with the 5”/6” model. The main point to me was connecting to the inlet of the blower motor. The larger model is cheaper (you don t have to buy the can) and it fits easily on the HF blower intake, and fits readily available 5” duct, which will cause less pressure loss in the system.
For anyone in the future who runs across this, check out these two videos from DIYTyler, whose DC is very similar to what I plan. He has mounted the blower and cyclone (and cannister filter, which I won t use) to the wall, with trash can easily slid out from underneath for emptying:
https://www.youtube.com/watch?v=0RAoj4urS-Y
https://www.youtube.com/watch?v=5BoF0gLm6hI
- JohnMcClure
That’s the exact MOD I did to mine. It’s in my projects if you want to check out any details that you can’t catch in DIYTyler’s video or alternative ideas.